Wind-motor.



No. 733,710. PATENTED JULY 14, 1903. c. E.. FIELD.

WIND MOTOR.

APPLICATION FILED SEPT. 10. 1902.

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C. E. FIELD. WIND MOTOR.

APPLICATION FILED SEPT. 1o. 1902.

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-ilnrrn Srn'rns .ATENT Patented July 14, ee.

WIND-MOTOR.-

SPECIFICATION forming' part of Letters Patent No. 733,710, dated Tully 14, 193',

Application filed September 10,1902. Serial No. 122,783. (No model.)

To o7/Z whom 212'; may concern,.-

Be it known that I, CLAUDE E. FIELD, a citizen of the United States of America, residing at Slater, in the county of Saline and State of Missouri, have invented certain new and useful Improvements in Wind-Motors; and I do hereby declare that the following is a full, clear, and exact description of the invention, such as will enable others to make and use the same, reference being had to the accompanying drawings, forming a part of this specification.

The objects of my invention are, primarily, to transmit the force and impact of the wind for power utilization through alternately opening and closing wind-breast mechanism in oscillation; second, to control automatically the position of the shutters during an increase in the velocity of the wind; third, to impart an energizing forward movement to the shutters; fourth, to compensate for the increased resistance to the opening of the shutters in a return movement; fth, to automatically control the motor so that its parts will feather the wind during a storm.

The invention consists in the novel construction and combination ot' parts, such as will be first fully described, and specifically pointed out in the claims.

In the drawings, Figure l is a view in perspective of the invention, showing the motor in position to be oscillated by the force of the wind and mechanically operated, respectively, and also the various positions of the shutters and mechanism controlling the action of the motor, the tower, the pumps, and the pump-rod actuated by the motor. Fig. 2 is an enlarged detail view in perspective of the main operating parts of the motor as seen at the upper end of the tower, the lower portion of the oscillating beams and of the tower being broken away. Fig. 3 is a detail plan View of the main supporting-beams of the motor upon the tower, showing a broken portion of the rock-shaft and the operative parts of the motor connected with said beams. Fig. 4 is a detail pian view of the lower transverse bar of the shutter-frame, showing the upper pivotal ends of the shutters and the shutter-operating bars. Fig. 5 is a detail View in perspective of the rack, showing the series of weights thereon. Fig. (S is a detail pins.

view of the inner side of the fixed part ofthe guideblock, showing the guide-plates and openings for the guide-pins, also showing the track closing plate and its position when open in dotted lines. Fig. 7 is a detail front view of the inner side of the movable part of the guideblock, showing the guide-block and Fig. 8 is a detail view of the guiding trigger or bar of the motor, showing the guideroller and stops on the shutter-operating bar. Fig. 9 is a detail view of a portion of the oscillating bars of the motor, showing the truss cross-bar and truss-wires. Fig. 10 is a detail View of the transverse bar on the standards supporting the operating-weights, showing the pulley and weights. Fig. l1 is a vertical sectional view of the guide-blocks, taken upon the line te m of Fig. 3.

Similar letters of reference'indicate corresponding parts in all the figures of the drawings.

Referring to the drawings, A represents the motor-supporting tower, which consists of the standards a a ct a, the lower ends of which are spread apart and extend within the ground a suitable distance. The upper ends extend a considerable distance above the ground, so as to afford an elevated position of the motor and obtain its effectual operation, and are in clined inwardly toward each other and are connected rigidly with the respective sides of the hollow block d2, which block extends a short distance in height above the upper end of said standards and is provided with a shoul der bx.

B represents one of the main supportingbeams forthe motor,whichis mounted in ahorizontal position upon the block c2, said beam having an opening b a short distance in rear of its forward end to receive the circular shoulder bx at the upper end of said block, upon which the motor has a pivotal bearing. (Jonnected rigidly with the under side of the forward end of the beam B, forward of the block CL2, is a transverse motor-supporting beam B,

upon the ends of which are shaft-hangers b2 b2, which extend downwardly from the under side of said beam and support the rock-shaft C, the ends of which shaft extend a short distance beyond the lines ot' the ends of beam,

B'. With the ends ofthe rock-shaft C are connected in vertical planes and rigidly the IOO oscillating bars D D of the motor, which are narrow in width and extend in length about an equal distance from their point of connection with shaft C to theinouter ends. The upper ends of the bars D D are connected together by the transverse bar D. With the inner surface of the bars D D, at an intermediate point from the upper end of said bars and the shaft C, are rigidlyconnected the ends of a transverse bar D2, which, with the bars D D, D', and D2, form a shutter-frame.

E E E E represent the series of automatically-operated shutters or vanes which form the wind-valve breast. These shutters extend in length from a position near the inner surface of the bar D to a position near the upper-surface of the bar D2, and the longitudinal edges of the shutters overlap when closed, as in Fig. 4. Upon the rear side of each shutter E, at a point equidistant from the longitudinal edges of the shutter, is connected rigidly a bar e, in each end of which bar is a pivot e', which extends a short distance within the inner surface of the bars D D2 and at a point a short distance iu rear of the forward edges of said bars, so as to leave a space about the thickness of said block between the outer surface of the shutter E when closed in position and the forward edges of the bars D D2. Upon the forward side of each shutter E and in line with the lower end of said shutter is screwed rigidly a fiat bar e2, which extends within a short distance of the longitudinal edges of each shutter. These bars e2 extend a short distance in width beyond the forward edge of the bar D2, and upon the under side of the series of bars e2 is a longitudinal operating-bar F, which is connected with each bar by the pivot-bolts e3, which extend vertically through the bars e2 near one end of the bar and in the direction of the longitudinal edge of the shutter, moving forward to admit the passage of the wind. These bolts are eccentrically located in respect to the pivots e e of the shutter E, so that in the reciprocal movement of the bar F the shutters E are opened to such an extent as the mechanism controlling the shutters may impart. Upon the under side of the operating-bar F and near one end thereof are the transverse fixed guide-stops ff.

G represents a hanging support or plate, the upper end of which is rigidly connected with the under side and forward edge of the transverse bar D2 in rear of the position of the guide-blocks ff on the bar F, the lower edge extending downwardly. Upon the forward side of the plate G is pivoted at h anY oscillating bar or trigger H, the upper end h2 of which trigger extends upwardly to a position between the guide-stops ff on the bar F and the lower end h3 downwardlya considerable distance below the pivot h and the sides of said trigger inclined inwardly, and upon said trigger is a roller 7b4.

I represents the trigger-controlling block on the beam B, which consists of separate semi-elliptical-shaped extension blocks or plates t' t", arranged in a parallel position on the upper surface of and in a transverse position to beam B' and directly beneath the lower end h3 of the oscillating trigger H, the position of said lower end being such as to move in the oscillations of the sh utterframe in planes parallel with the elliptical surfaces of the parts 1I t" of the guide-blockI and also transverse thereto. The part t' of the block I is notched on its under side at iX to admit the beam B' and is arranged adjacent to the inner side of the oscillating bar D and is fixed in position, while the part z" is also notched to fit the beam B and is laterally adjustable in position. On the inner side of the movable part t" are guide-pins t2 t2, which extend within the perforations i3 i3 on the inner surface of the part t' and permit the lateral movement of said part ol'. On the curved surface of the movable part 2 of the guideblock I nearits outer edge is a guide-plate i, which is short in length and extends upwardly a short distance and is located upon the high'est point ofthe said part of the block, the inner surface of which extends from the surface of the block upwardly, as at i5. On the inner side of the said part z" is a plate 6, nearly of the same length and opposite in position to the guide-block t, the lower part of which is flush with the surface of said side. On the inner side of the part t' of blockI is a guide-plate il, which is of the same length as the plate G and extends the same distance in height, the lower end being'ilush with the surface of said inner side of the part i of the block. On the inner side of the parttl of the guide-block I is a forwardly-extended trackclosing plate K, which is pivotally connected at lo with the inner side of the part QI of the block a short distance forward of the forward end of the plate i7 and at a point on said plate near the lower edge and at its rearend, so that the raising in horizontal position of the plate will close the space between the respective opposite ends of said plates and the lowering in position will afford a wide space for the movement laterally of the lower end of the oscillating bar H. With the upper corner and rear end of plate K is connected one end of a ropek' the otherend ofwhich extendsloosely to the drum T and which is operated to close said track and put the motor out of operation either by the hand or automatically.

L represents a slidable bar within the guides ZZon the upper surface of the beam B arranged in a transverse direction thereto and a short distance from the movable part t" of the guide-block. Upon the outer side of the part i' of the guide-block is connected the upwardly-bent inner end of a narrow plate M, the other end of which plate extends horizontally upon the upper surface of the slid# able bar L, and in said plate is a slot m' inclined at an oblique angle to said bar. In the bar is a pin m2, which extends upwardly within the slot in. The forward end of the slidable bar L extends a short distance beyond the line of the forward edge of the beam B', and connected with the said forward edge directly beneath the bar L is a forwardly-extended plate N. With the under side of the plate N is connected the upper ends of the sides n n of a V-shaped rack n, which sides are the same iu width as the plate N. Vithin the rack are a series of weights n2 n2 n2, varying in length and arranged in a horizontal position and in tiers within the rack. The ends of the weights are inclined at the same angle as the inner surface of the box and being of different lengths they are retained by the sides of the box at about equal distances apart. Vith the weight lowest in position is connected one end of a rope n3, the other end of which rope extends through the remaining weights and through a perforation n4 in the plate N, thence over a pulley a5 on said plate, and connected with the forward end of the slidable bar L. Upon the upper surface of beam B and connected rigidly therewith upon the side of the slidable bar toward beam B is a standard P, the upper end of which extends upwardly about twothirds the distance toward the transverse bar D2 of the shutter-frame, and upon said end is a horizontal bar p, extending in a transverse direction to beam B'. On the outer side and at each end of the bar p are sheaves p 3.

Upon the under side of beam D2, a short distance from the support G, is a sheave R,which is mounted on a journal fr, extending downwardly from said beam. With the inner side of beam D,nearly in the same horizontal plane with the sheave R, is connected a sheave S. One end of a rope s is connected with the upper end of the trigger H and extended over sheave S, thence in rear of the sup.

port G and over the sheave p on the rear end of the bar p, and thence downwardly a considerable distance, and a weight S2 connected with said end of a suicient power to operate the trigger. With the upper end of the trigger H is connected one end of a separate rope S3, the other end of which rope extends over the sheave R, thence over the sheave p2 on the forward end of the bar p, and a weight S4, connected with said end. These weights S2 S4 are normally in suspension, and in order to retain them l connect a pin or link S5 with each rope which comes in contact with the sheave and sustains the weights S2 Si, which act to oscillate the trigger.

Upon the rear end ofthe beam B is a transverse rock-shaft t, mounted in the bearings t t', and upon the end of said shaft, directly in the rear of the slidable bar L, is a drum T. Extending around drum T is a rope t2, connecting these with one end,the other end being connected with the rear end of the bar L. Vith the shaft t are connected the lower ends of the upwardly-extending Vibrating arms t t4, upon the forward side of which arms is connected a wind-actuated flat plate t5, of considerable length and width, so as to be operated by the wind.

`Upon beamB, a short distance in advance of the shaft t, is a fixed block u, upon which are lugs fu. u', between which is pivotally connected one end of a bar U, the forward end of which extends to a position nearly in line with the forward end of beam B. In the forward end of beam B is a longitudinal slot h2, extending to the transverse beam B. With the rock-shaft C, directly beneath the slot b2, is rigidly connected one end of an arm V, the other end of which arm extends forwardly a considerable distance and is provided with notches c upon its upper side at short distances from each other. Upon the arm V is a sliding weight fu', upon the forward side of which is a pawl c2, which engages with the notches t, and upon the edge of which, at its upper end, is au arm u2,which is pivotally connected with the side of the weight. Upon the lower end is an eye lUwith which is connected one end of a rope c5.

lV represents an ordinary VWater-raising pump, shown upon the ground beneath the motor, and w is the pump-rod, which extends upwardly through the hollow block d2 on the tower, and is forked at w and said forked end pivotally connected with the bar U. The other end of rope c5 is connected with the drum T. With the arm V on the rock-shaft is pivotally connected one end of a piu fu, the other end of which pin extends upwardly through vlthe slot b2 in the beam B and is pivotally connected with the forward end of the bar U.

Upon the lower ends of the oscillating bars D D of the motor and connected with the rear edge of said bars are the rods x, which extend outwardly a short distance and then are bent at right angles and extended forwardly a considerable distance beyond the line of the forward edge of said bars. These rods are screw-threaded, and upon said rods are the adjustable Y internally screw threaded weights 0c. Y

Upon the rearend of beam Bvl is a verticallyarranged wind-steering vane Y, which acts to keep the shutter in the face of the wind.

The bars D are provided on the outside portions and at a'point just above the position of the shaft C with transverse truss-bars c z, through the ends of which are passed the truss wires or rods e 5, the ends of which wires are connected with the respective upper and lower ends of the bars at the forward and rear edges, thus bracing the bars from side strains, which may occur in shifting positions.

In the operation of the motor the degree of force of the wind received upon the shutter E in the shutter-frame and the vibrating plate 5 is proportionally extended to effect the rearward movement of the shutter E and frame at the upper end of the oscillating bars D D, and said plate t5 and the angles of inclination are correspondingly greater or less. Upon the rearward movement of the shutters III:

E E, which are normally in a closed position, a slack is occasioned in the rope s, connected with the trigger-bar H, and the rearward inclination of the support G causes the slack to be taken up in rope s3, and the weightsH1 draws upon the upper end of the trigger H, moving the lower antifriction end in rear of the plates fie z' toward the outer edge of part 2T of cam I, and at the same time the upper end of the trigger r moves the bar F in the same direction of movement and feathering or opening the shutters E", so as to admit the passage of the wind through and past the forwardly-moving edges, as seen in Fig. 4:. The release of the force of the wind upon the shutter E and also the gravitating force of the weights at the outer end of the rods a; at the lower end of the bars D D tend to oscillate the bars to a vertical position, this being assisted by the combined power exerted by the weight V, as further noted. Upon the return movement forward of the shutters E the roller h4 on the lower end of the trigger H moves over the outer surface of the iianged guide 7, the weight sistill exerting the force upon the trigger to keep the roller in contact with the guide or iiange, and in the movement the bars D D reach their vertical position, the slack occasioned in the rope S3 and the tension is cornmunicated to the rope S, and the weight S2, acting upon the trigger H, causes the roller h4 to move past the forward end of the guideplates t6 and in the backward movement of the shutter-frame is in contact therewith. When the bars D D in a backward movement come into a vertical position, said lastnamed cord S2 is taut, and as bars D D are moved rearwardly from said position they gradually lift weight s4, which tends to oscillate the trigger H in an opposite direction from weight S2, so that when the bars D D come into a position, say, about twenty-two and one-half degrees backward of the vertical position the roller h4 comes to the forward end of its guide-plate t3 on the part il' of block I, and the trigger H is allowed to be pulled so as to cross the roller h4 to the track in part 1I' of block I, which opens the shutters, so they feather the wind, and the motor is ready for another oscillation. The function of the cords named and weights S2 and S4 is to open and close shutters as guided by guideblock I. By this means a force is stored as the bars D D oscillate that can be rendered immediately effective when said hars reach proper positions, and thus an immediate and quick manipulation of the shutters is had. Under normal condition of winds velocity the bars D D oscillate back and forth through an arc of a circle of, say, about forty-five degrees, being equal on either side of a vertical position. Vhen forward, the shutters are entirely closed, and the force of the wind blows them backward to a point about twenty-two and one-half degrees back of a vertical position, when the shutters feather the wind by being opened, as aforesaid, and the main wind-valve breast loses the force of the wind, and the barsD D then oscillate forward, impelled by the gravity of weights X X, placed at the lower ends of bars D D and in front of said bars a suliicient distance to move said bars D D to a point, say, about twenty-two and one-half degrees forward of a vertical position, when the shutters are closed, as heretofore explained, or are par tially closed, as will be explained herein. The motor is then ready to receive the force of wind and repeat the oscillation. The weights X X on rods a' at the lower ends of bars-D D can be adjusted by hand backward or forward to so shift the center of gravity of the oscillating beams D D that they will fall forward to a proper position, and the powerthns caused by the oscillations of beams D D is conveyed to arm V to operate the pump-rod. To meet the changing velocity of the wind, so that the mechanism will deliver power uniform in tension and speed, and to automatically stop and feather the shutters in a dangerous stage of the wind, the motor is controlled, first, by the action of the slidable bar L and the plate i5. Vhen the slidable bar L is drawn backward by increased wind-pressure, the pin m2, working against the inclined side of slot m', pushes or moves the movable part or half-block il of guide-block I toward and close to fixed part t' of guide-block I. This movement brings the part z' and part t" closer together and restricts the transverse oscillation of trigger H, so that as it crosses the guide-block I in front that it will not allow a full sweep of the trigger H, which has the effect to leave the shutters partially open to a greater degree as the wind-pressure on plate t5 becomes greater. As the wind-pressure subsides the weights n2 n2 n2 n2 will settle back to normal places and the parts of guideblock I will open out wider to a normal position. The function of these devices is to utilize less and less wind-face surface in a ratio equal to its increased velocity or pressure. Second, in the V-shaped rack, as before eX- plained, the lowest weight is of sulcient size to maintain the governor wind-plate t5 in vertical position under normal wind velocity or pressure. Vhen pressure gets greater than normal, it will rotate the drum T, which will pull the cords and slidable bar L backward and the lowest weight will be raised, which will' pick up the next higher, and it the second weight higher, and so on. The function of the weights n2 n2 n2 n2 is to weigh the windpressure on plate t5 and to determine the position of said plate. This backward-and-forward movement of bar L governs the motor by holding the shutters E E E E partially open to a degree that increases in an equal ratio with increase of wind-pressu re, and vice versa. When the wind-pressure increases above normal, drum T rotates, as before explained, and pulls the cord which lifts pawl o3 and raises it from the notch, so than when arm V is at its downward position the weight Ico c will slide forward or outward from rock-v shaft C until there is a slack in the cords, when the pawl will drop in a notch and hold the weight. When the wind velocity falls or pressure grows less, drum T will turn back and occasion a slack in the cord, and when armVis at its upward position the weight t' will fall back or toward the rock-shaft C as far as the slack Will let it and the pawl will creased resistance the open shutters meet on I their return movement, as it is plain that they have a necessary thickness. to make them strong and durable. The cord running from track-closing plate K to drum T has enough slack in it so that when the wind reaches a dangerous stage or storm it will lift said track-closing plate, so it will put the motor out of operation and cause all of its parts to feather the wind and put it in safe position.

The first and second governing devices cooperate, and I may dispense with either one or both, as the pendulum-like movement of the oscillating bars D D is with great reguluarity in both as to the number of oscillations in a given time and power, and an even and smooth movement results.

The truss-bars Z Z extend sidewise a considerable distance, so that when tightened they protect the motor against either forward, backward, or side strains.

It is obvious that various changes may be made in form and construction of the windmotor described and that equivalents might be substituted for various gravity devices herein described.

It is plain that by releasing bar V from bar U the wind-motor can be turned upside down, so that the top part will come to an easy position for repairs or safety from storm.

The shutters E E are always abreast of the wind, being so controlled by the vane, and the motor moves in the arc of a circle as the direction of the wind changes upon the shoulder b4 on the hollow block l?.

Various modiiicationsmayalso be employed within the scope of the invention.

I-laving fully described my invention, what I now claim as new, and desire to secure by Letters Patent, is-

l. In a wind-motor a pivoted main supporting-beam, acounterbalanced oscillating shutter-frame supported in suitable bearings on said beam, and pivoted shutters in said frame, shutter-operatingdevices connected with said shutters and wind-operated devices on the said main supporting-beam coacting with and actuating the said shutter-operating devices.

2. In a wind-motor, a main supportingbeam, a rock-shaft, and suitable bearings upon said supporting-beam, oscillating bars, shaft-hangers upon said bars fixedly connected with said shaft intermediate the ends of said bars, a shutter-frame at the upper end of said bars, and pivoted shutters in said frame, a shutter-operating bar, and devices upon the said main beam coacting with and operating said shutter-operating bar.

3. In a wind-motor, a main supportingbeam, a rock-shaft and suitable bearings upon said beam supporting said shaft, oscillating bars xedly connected with said shaft intermediate the ends of said bars, a shutterframe at the upper ends of said bars, pivoted shutters to said frame, and a shutter-operating bar, and stops upon said bar, a hanging support connected with the shutter-frame, and an oscillating trigger-bar pivotally connected with said hanging support and loosely connected at its upper end with the shutteroperating bar, and a guide-block upon said beam controlling thelowerend of said trigger.

et. In a wind-motor, a main supportingbeam, a rock-shaft and suitable shaft-bearings upon said beam supporting said shaft, oscillating bars fiXedly connected with said shaft, intermediate the ends of said bars, a shutter-frame atthe upper ends of said bars pivoted shutters in said frame, a shutter-operating bar, a hanging support on the shutter-frame, an oscillating trigger-bar pivotally connected with said support and loosely connected at its upper end with the shutter-operating bar, a guide-block upon the main beam inthe path of the lower end of the trigger-bar,and reciprocally-acting, power-transmitting devices on the main beam imparting a reciprocal movement to the oscillating bar.

5. In a wind-motor, a main supportingbeam, a rock-shaft, and suitable shaft-bearings upon said beams supporting said shaft, oscillating bars xedly connected with said shaft intermediate the ends of said bars, a.

shutter-frame at the upper end of said bars, pivoted shutters on said frame, a shutter-operating bar, and suitable guide-blocks thereon, a hanging support on the shutter-frame, an oscillating trigger-bar pivotally connected with said support and extending between the guide-blocks in the shutter-operating bar, a guide-block on the main beam in the path of IOC the lower end of the trigger-bar, an upright baron the main beam, and weights suspended therefrom, sheaves on the oscillating bar adjacent to the trigger-bar and the support for the suspended weights, and separate ropes connected at one end with the upper end of the trigger-bar, one of which extends from the trigger-bar through the sheave on the oscillating bar and connected with one of the suspended Weights, and the other rope extended from said bar and through the sheave on said support, and connected with the other suspended weight.

6. ln a wind-motor the combination with a main supporting-beam of a counterbalanced frame journaled upon said beam, pivoted vanes lin said frame, a depending support on said frame and a longitudinal centrally-pivoted trigger-bar on said support actuating said vanes at its upper end, mechanism for oscillating said bar on its pivot, separate fixed and movable guide-blocks on the main beam, guiding devices on said blocks in the path of the lower end of the trigger-bar and means substantially as described for adjusting the position of the movable guide-block.

7. A wind-motor comprising a main, transverse beam, and a longitudinal supportingbeam, a rock-shaft beneath the transverse beam, and shaft-bearings upon said beam supporting said shaft, oscillating bars xedly connected with said rock-shaft intermediate the ends of said bars, a shutter-frame at the upper end of said bars and pivoted shutters therein, a shutter-operating bar pivotally connected with said shutters, and guide-stops thereon, a hanging support on the shutterframe, and a pivoted, oscillating trigger-bar on said support, having an antifrictiou lower end, and an upright ou the said main, transverse beam, and normally suspended weights on said uprights, and sheaves on said support and said oscillating bar, separate powerconveying ropes connected with the triggerbar extending to and connected with the weights, one of which ropes extends through the sheave ou said oscillating bar, an extension guide-block on the main beam beneath said trigger-bar having separate fixed and movable parts, and guide plates on said block in the path of the lower end of the trigger-bar, a self-retracting, slidable bar on the main beam adjustably connected with the movable portion of said guide-block, a rockshaft ou the longitudinal beam, a wind-operated plate on said shaft, and devices on said shaft communicating power to the said slidable bar on the main beam.

8. In a wind-motor composed of oscillating bars, and a Arock-shaft fixedly connected with said bars, intermediate the ends thereof, and wind-operated devices at t-he upper end of said bars, the combination of outwardly-extended screw-threaded rods at the lower ends of said bars, and internally-screw-threaded perforate weights on said rods.

9. A wind motor comprising a suitable tower, a main transverse beam and a longitudinal beam supported thereby, a rock-shaft beneath the transverse beams, and suitable shaft-bearings upon said beams, oscillating bars fixedly connected with said rock-shaft intermediate the ends thereof, automaticallycontrolled wind-vanes upon the upper ends of said bars and gravitating devices on the lower ends, an arm on the rock-shaft, a vibrating bar pivoted at its rear end to a suitable support upon the rear end of the longitudinal beam and a link connecting the forward end of said vibrating bar with the arm of said rock-shaft, and a power-conveying rod connected with the said vibrating bar.

lO. .A wind-motor comprising a main, supporting-beam, a rock-shaft, and suitable bearings supporting said shaft, oscillating bars xedly connected with said shaft intermediate the ends thereof, a shutter-frame and pivoted shutters within said frame, a shutteroperating bar and guide-stops thereon, astationary support on the main beam, a pivoted oscillating trigger-bar on said support, having one end extending between the guidestops on said shutter-bar, a guide-block on the main beam in the path of the lower end of said trigger-bar having separate parts, guide-plates on the inner side of said plates, means for oscillating said trigger-bar and a track-closing plate on the guide-block at the forward end of said block.

ll. The combination with a guide-block for wind-motors having separate fixed and movable parts, and guide-plates on said parts of a forwardly-extended track-closing plate pivotally connected with the inner side of the fixed plate and having the rear end movable past the forward end of said plate.'

12. A wind-motor comprising a main transverse beam and a longitudinal supportingbeam, a rock-shaft beneath the transverse beam and shaft-hangers on said beam supporting said shaft, oscillating bars iixedly connected with said rock-shaft intermediate the ends thereof, a shutter-frame at the upper ends of said bars and pivoted shutters therein, gravitating devices at the lower ends of said bars, means for opening and closing said shutters alternately, an arm on the rockshaft having notches therein, a slotted weight on said arm, and a pawl on said weight engaging with said notches a rock-shaft on the main longitudinal beam a drum on said shaft, a vibrating bar pivoted at its rear end to a suitable support upon the said longitudinal beam a link connecting the forward end of said bar with the arm on the rock-shaft beneath the transverse beam, a cord connected with the said drum and extending through an eye on the arm of the rock-shaft carrying the movable weight and connected with said pawl substantially as described.

CLAUDE E. FIELD.

ICO

IIO 

